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我已经尝试使用各种方法来设置使用codeigniter进行多选下拉列表的表单验证,但无法正确设置规则。在这里是我使用的代码,好心帮助。附:我已经尝试过在stackoverflow上建议的代码,但徒劳无功。在codeigniter中的多选下拉列表的表单验证
<select class="" name="travel_cat[]" multiple="multiple" id="travel_lst" data-placeholder="Select Travel Categories" style="width: 100%;">
<option value="adventure">Adventure</option>
<option value="arts&culture">Arts & Culture</option>
<option value="events">Events</option>
<option value="backpacking">Backpacking</option>
<option value="beach_holidays">Beach Holidays</option>
<option value="budget_travel">Budget Travel</option>
<option value="city_travels">City Travels</option>
<option value="day_trips">Day Trips</option>
<option value="honeymoons">Honeymoons</option>
<option value="family_trips">Family Trips</option>
<option value="weekend_gateway">Weekend Gateway</option>
<option value="history&architecture">History & Architecture</option>
<option value="luxury">Luxury</option>
<option value="nature">Nature</option>
<option value="road_trips">Road Trips</option>
<option value="wildlife">Wildlife</option>
<option value="religious">Religious</option>
</select>
$choice = $this->input->post("travel_cat");
if(is_null($choice))
{
$choice = array();
}
$travel_cat = implode(',', $choice);
表单验证: -
$this->form_validation->set_rules('travel_cat', 'Travel Category', 'callback_check_default');
function check_default($array)
{
foreach($array as $element)
{
if($element == '0')
{
return FALSE;
}
}
return TRUE;
}
多选框中没有值'0'。它会一直返回你'真的' – Saty
那么我应该把什么,而不是0? –
您需要检查'if($ element ==“”) { return FALSE; }' – Saty